SOSP '21: ACM SIGOPS 28th Symposium on Operating Systems Principles, Virtual Event / Koblenz, Germany, October 26-29, 2021

Welcome to the Proceedings of the 28th ACM Symposium on Operating Systems Principles (SOSP 2021). This year's program includes 54 papers covering a broad range of topics in computer systems research. The program committee worked hard to select some of the most creative and interesting ideas in computer systems research today, and each accepted paper was shepherded by a program committee member to make sure the papers are as readable and complete as possible. We hope you will enjoy the program as much as we did in selecting it.